Home / 3,119.21-4,304.60-1,775.04

Finding the Fourth Proportional to 3,119.21, 4,304.60 and 1,775.04

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Solution

The fourth proportional to 3,119.21, 4,304.60 and 1,775.04 is: 2,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.21 : 4,304.60 = 1,775.04 : x
  2. Step 2: Convert to fraction form
    3,119.21/4,304.60 = 1,775.04/x
  3. Step 3: Cross multiply
    3,119.21x = 4,304.60 × 1,775.04
  4. Step 4: Simplify right side
    3,119.21x = 7,640,828.31
  5. Step 5: Solve for x
    x = 7,640,828.31/3,119.21
  6. Step 6: Final answer
    x = 2,449.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.